- Diplichnites
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Diplichnites is an ichnogenus thought to be made by members of the Phylum Arthropoda. It is a fossil trackway showing two parallel lines of feet impressions. The famous terrestrial arthropod genus Arthropleura produces the trace fossil D. cuithensis. Diplichnites is traditionally thought to be a trilobite trace fossil; however, it is also produced by other organisms such as freshwater and terrestrial arthropods of unknown affinity (possibly including myriapods).[1]
Oblique bedding plane view of large Diplichnites from the Joggins Formation (Pennsylvanian), Cumberland Basin, Nova Scotia. This trackway was made by the millipede Arthropleura.
Trilobite ichnotaxa: stationary to full stride
Three ichnotaxa describe trilobite motion: Rusophycus (resting), Cruziana (furrowing), and Diplichnites (walking). For the trilobites, gradations between the three ichnotaxa are common and often difficult to categorize.[2]
External links
Diplichnites:
- Photo--Diplichnites gouldi arthropod trackway--(marine, tidal); Article – "Bulletin 241", Kansas Geological Survey
- Photo--from Arthropleura sp; Article – "Nova Scotia, Carboniferous Geology and Paleontology"
Trilobite Tracks:
- Trilobite Trace Fossils – 3-main types of trilobite trace fossils
References
- ^ Woolfe, K.J. (1990). "Trace fossils as paleoenvironmental indicators in the Taylor Group (Devonian) of Antarctica". Palaeogeography, Palaeoclimatology, Palaeoecology 80 (3–4): 301–310. doi:10.1016/0031-0182(90)90139-X.
- ^ Garlock, T. L.; Isaacson, P. E. (1977). "An occurrence of a Cruziana population in the Moyer Ridge Member of the Bloomsberg Formation (Late Silurian)-Snyder County, Pennsylvania". Palaeontology (Paleontological Society) 51 (2): 282–287. JSTOR 1303607
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